Radio chronology

1936
24 July	Earhart takes delivery on her birthday.
October	Hooven Radio Compass installed; Dayton, Ohio.
November	Bell Labs, Hadley Field, N.J. Western Electric transmitter and receiver installed by W.C. Tinus. Dorsal Vee added.
November ?	Gurr re-attaches receiver antenna in California?
November 27	Inspected: WE transmitter and receiver, Hooven Radio Compass
1937
February 12	NYC Press conference announcing round-the-world flight. Manning flies with Earhart and Putnam to California.
	Gurr and Manning work together.
March 7	Loop antenna installed.
March 13	Noonan hired.
	Test flights.
17 March	Oakland to Honolulu.
20 March	Luke Field.
2 April	Electra returned to California, trucked to Lockheed.
14 May	Letter of authority for second attempt issued.
19 May	Bureau of Air Commerce certifies aircraft airworthy.
20 May	Second round-the-world attempt began in secret.
23 May	Arrived in Miami with radio complaints. Pan American mechanics troubleshoot systems. Starboard navigation window skinned over.
30 May	Public announcement of second attempt.
26 June	Port Darwin? 0720 GMT, Earhart: "...Itasca transmit letter A, position, own call letters, as above on half hour at 7.5 MHz." Earhart sent two telegrams to Lae; one said that she would be using 36 meters (8.327 MHz) and the other said 36.6 meters (8.191 MHz) on her direction finder.
28 June	Receiver fuse replaced in Darwin.
29 June	AE stayed in touch with Darwin "for a distance of 200 miles from this station, radio telephone being used by Miss Earhart." Couldn't test direction finder because Earhart sent wrong frequencies to Lae. Delayed in Lae.
1 July	Failed direction finding test in Lae. Rec'd time and weather.
2 July (Lae date)	Left Lae. Transmissions not heard for hours ...
2 July	Aircraft lost.
30 July	Cross memo describes the original transmitter, receiver, and Hooven Radio Compass.

Related articles

• Timeline of the second round-the-world attempt.